How exactly does the sandbox behave? Does it automatically put all unknown things in there? If it does, I would be hesitant about using it. The one that Comodo recently built into their suite is terrible, especially for gamers. It keeps sandboxing things even after you have told it not to and with no alert that it is doing so. I would hope that the Avast! one is better. The test shown here only shows how effective it is at sandboxing a browser and it's impressive in that regard. How does it work otherwise is what I want to know.